/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* include/asm-s390/zcrypt.h
*
* zcrypt 2.2.1 (user-visible header)
*
* Copyright IBM Corp. 2001, 2022
* Author(s): Robert Burroughs
* Eric Rossman (edrossma@us.ibm.com)
*
* Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
*/
#ifndef __ASM_S390_ZCRYPT_H
#define __ASM_S390_ZCRYPT_H
#define ZCRYPT_VERSION 2
#define ZCRYPT_RELEASE 2
#define ZCRYPT_VARIANT 1
#include <linux/ioctl.h>
#include <linux/compiler.h>
#include <linux/types.h>
/* Name of the zcrypt device driver. */
#define ZCRYPT_NAME "zcrypt"
/**
* struct ica_rsa_modexpo
*
* Requirements:
* - outputdatalength is at least as large as inputdatalength.
* - All key parts are right justified in their fields, padded on
* the left with zeroes.
* - length(b_key) = inputdatalength
* - length(n_modulus) = inputdatalength
*/
struct ica_rsa_modexpo {
__u8 __user *inputdata;
__u32 inputdatalength;
__u8 __user *outputdata;
__u32 outputdatalength;
__u8 __user *b_key;
__u8 __user *n_modulus;
};
/**
* struct ica_rsa_modexpo_crt
*
* Requirements:
* - inputdatalength is even.
* - outputdatalength is at least as large as inputdatalength.
* - All key parts are right justified in their fields, padded on
* the left with zeroes.
* - length(bp_key) = inputdatalength/2 + 8
* - length(bq_key) = inputdatalength/2
* - length(np_key) = inputdatalength/2 + 8
* - length(nq_key) = inputdatalength/2
* - length(u_mult_inv) = inputdatalength/2 + 8
*/
struct ica_rsa_modexpo_crt {
__u8 __user *inputdata;
__u32 inputdatalength;
__u8 __user *outputdata;
__u32 outputdatalength;
__u8 __user *bp_key;
__u8 __user *bq_key;
__u8 __user *np_prime;
__u8 __user *nq_prime;
__u8 __user *u_mult_inv;
};
/**
* CPRBX
* Note that all shorts and ints are big-endian.
* All pointer fields are 16 bytes long, and mean nothing.
*
* A request CPRB is followed by a request_parameter_block.
*
* The request (or reply) parameter block is organized thus:
* function code
* VUD block
* key block
*/
struct CPRBX {
__u16 cprb_len; /* CPRB length 220 */
__u8 cprb_ver_id; /* CPRB version id. 0x02 */
__u8 ctfm; /* Command Type Filtering Mask */
__u8 pad_000[2]; /* Alignment pad bytes */
__u8 func_id[2]; /* function id 0x5432 */
__u8 cprb_flags[4]; /* Flags */
__u32 req_parml; /* request parameter buffer len */
__u32 req_datal; /* request data buffer */
__u32 rpl_msgbl; /* reply message block length */
__u32 rpld_parml; /* replied parameter block len */
__u32 rpl_datal; /* reply data block len */
__u32 rpld_datal; /* replied data block len */
__u32 req_extbl; /* request extension block len */
__u8 _pad_001[4]; /* reserved */
__u32 rpld_extbl; /* replied extension block len */
__u8 _pad_002[16 - sizeof(__u8 *)];
__u8 __user *req_parmb; /* request parm block 'address' */
__u8 _pad_003[16 - sizeof(__u8 *)];
__u8 __user *req_datab; /* request data block 'address' */
__u8 _pad_004[16 - sizeof(__u8 *)];
__u8 __user *rpl_parmb; /* reply parm block 'address' */
__u8 _pad_005[16 - sizeof(__u8 *)];
__u8 __user *rpl_datab; /* reply data block 'address' */
__u8 _pad_006[16 - sizeof(__u8 *)];
__u8 __user *req_extb; /* request extension block 'addr'*/
__u8 _pad_007[16 - sizeof(__u8 *)];
__u8 __user *rpl_extb; /* reply extension block 'address'*/
__u16 ccp_rtcode; /* server return code */
__u16 ccp_rscode; /* server reason code */
__u32 mac_data_len; /* Mac Data Length */
__u8 logon_id[8]; /* Logon Identifier */
__u8 mac_value[8]; /* Mac Value */
__u8 mac_content_flgs; /* Mac content flag byte */
__u8 _pad_008; /* Alignment */
__u16 domain; /* Domain */
__u8 _pad_009[12]; /* reserved, checked for zeros */
__u8 _pad_010[36]; /* reserved */
} __attribute__((packed));
/**
* xcRB
*/
struct ica_xcRB {
__u16 agent_ID;
__u32 user_defined;
__u16 request_ID;
__u32 request_control_blk_length;
__u8 _padding1[16 - sizeof(__u8 *)];
__u8 __user *request_control_blk_addr;
__u32 request_data_length;
__u8 _padding2[16 - sizeof(__u8 *)];
__u8 __user *request_data_address;
__u32 reply_control_blk_length;
__u8 _padding3[16 - sizeof(__u8 *)];
__u8 __user *reply_control_blk_addr;
__u32 reply_data_length;
__u8 __padding4[16 - sizeof(__u8 *)];
__u8 __user *reply_data_addr;
__u16 priority_window;
__u32 status;
} __attribute__((packed));
/**
* struct ep11_cprb - EP11 connectivity programming request block
* @cprb_len: CPRB header length [0x0020]
* @cprb_ver_id: CPRB version id. [0x04]
* @pad_000: Alignment pad bytes
* @flags: Admin bit [0x80], Special bit [0x20]
* @func_id: Function id / subtype [0x5434] "T4"
* @source_id: Source id [originator id]
* @target_id: Target id [usage/ctrl domain id]
* @ret_code: Return code
* @reserved1: Reserved
* @reserved2: Reserved
* @payload_len: Payload length
*/
struct ep11_cprb {
__u16 cprb_len;
__u8 cprb_ver_id;
__u8 pad_000[2];
__u8 flags;
__u8 func_id[2];
__u32 source_id;
__u32 target_id;
__u32 ret_code;
__u32 reserved1;
__u32 reserved2;
__u32 payload_len;
} __attribute__((packed));
/**
* struct ep11_target_dev - EP11 target device list
* @ap_id: AP device id
* @dom_id: Usage domain id
*/
struct ep11_target_dev {
__u16 ap_id;
__u16 dom_id;
};
/**
* struct ep11_urb - EP11 user request block
* @targets_num: Number of target adapters
* @targets: Addr to target adapter list
* @weight: Level of request priority
* @req_no: Request id/number
* @req_len: Request length
* @req: Addr to request block
* @resp_len: Response length
* @resp: Addr to response block
*/
struct ep11_urb {
__u16 targets_num;
__u8 __user *targets;
__u64 weight;
__u64 req_no;
__u64 req_len;
__u8 __user *req;
__u64 resp_len;
__u8 __user *resp;
} __attribute__((packed));
/**
* struct zcrypt_device_status_ext
* @hwtype: raw hardware type
* @qid: 8 bit device index, 8 bit domain
* @functions: AP device function bit field 'abcdef'
* a, b, c = reserved
* d = CCA coprocessor
* e = Accelerator
* f = EP11 coprocessor
* @online online status
* @reserved reserved
*/
struct zcrypt_device_status_ext {
unsigned int hwtype:8;
unsigned int qid:16;
unsigned int online:1;
unsigned int functions:6;
unsigned int reserved:1;
};
#define MAX_ZDEV_CARDIDS_EXT 256
#define MAX_ZDEV_DOMAINS_EXT 256
/* Maximum number of zcrypt devices */
#define MAX_ZDEV_ENTRIES_EXT (MAX_ZDEV_CARDIDS_EXT * MAX_ZDEV_DOMAINS_EXT)
/* Device matrix of all zcrypt devices */
struct zcrypt_device_matrix_ext {
struct zcrypt_device_status_ext device[MAX_ZDEV_ENTRIES_EXT];
};
#define AUTOSELECT 0xFFFFFFFF
#define AUTOSEL_AP ((__u16)0xFFFF)
#define AUTOSEL_DOM ((__u16)0xFFFF)
#define ZCRYPT_IOCTL_MAGIC 'z'
/**
* Interface notes:
*
* The ioctl()s which are implemented (along with relevant details)
* are:
*
* ICARSAMODEXPO
* Perform an RSA operation using a Modulus-Exponent pair
* This takes an ica_rsa_modexpo struct as its arg.
*
* NOTE: please refer to the comments preceding this structure
* for the implementation details for the contents of the
* block
*
* ICARSACRT
* Perform an RSA operation using a Chinese-Remainder Theorem key
* This takes an ica_rsa_modexpo_crt struct as its arg.
*
* NOTE: please refer to the comments preceding this structure
* for the implementation details for the contents of the
* block
*
* ZSECSENDCPRB
* Send an arbitrary CPRB to a crypto card.
*
* ZSENDEP11CPRB
* Send an arbitrary EP11 CPRB to an EP11 coprocessor crypto card.
*
* ZCRYPT_DEVICE_STATUS
* The given struct zcrypt_device_matrix_ext is updated with
* status information for each currently known apqn.
*
* ZCRYPT_STATUS_MASK
* Return an MAX_ZDEV_CARDIDS_EXT element array of unsigned chars for the
* status of all devices.
* 0x01: PCICA
* 0x02: PCICC
* 0x03: PCIXCC_MCL2
* 0x04: PCIXCC_MCL3
* 0x05: CEX2C
* 0x06: CEX2A
* 0x07: CEX3C
* 0x08: CEX3A
* 0x0a: CEX4
* 0x0b: CEX5
* 0x0c: CEX6, CEX7 or CEX8
* 0x0d: device is disabled
*
* ZCRYPT_QDEPTH_MASK
* Return an MAX_ZDEV_CARDIDS_EXT element array of unsigned chars for the
* queue depth of all devices.
*
* ZCRYPT_PERDEV_REQCNT
* Return an MAX_ZDEV_CARDIDS_EXT element array of unsigned integers for
* the number of successfully completed requests per device since the
* device was detected and made available.
*
*/
/**
* Supported ioctl calls
*/
#define ICARSAMODEXPO _IOC(_IOC_READ | _IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0)
#define ICARSACRT _IOC(_IOC_READ | _IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0)
#define ZSECSENDCPRB _IOC(_IOC_READ | _IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0)
#define ZSENDEP11CPRB _IOC(_IOC_READ | _IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x04, 0)
#define ZCRYPT_DEVICE_STATUS _IOC(_IOC_READ | _IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x5f, 0)
#define ZCRYPT_STATUS_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x58, char[MAX_ZDEV_CARDIDS_EXT])
#define ZCRYPT_QDEPTH_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x59, char[MAX_ZDEV_CARDIDS_EXT])
#define ZCRYPT_PERDEV_REQCNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x5a, int[MAX_ZDEV_CARDIDS_EXT])
/*
* Support for multiple zcrypt device nodes.
*/
/* Nr of minor device node numbers to allocate. */
#define ZCRYPT_MAX_MINOR_NODES 256
/* Max amount of possible ioctls */
#define MAX_ZDEV_IOCTLS (1 << _IOC_NRBITS)
/*
* Only deprecated defines, structs and ioctls below this line.
*/
/* Deprecated: use MAX_ZDEV_CARDIDS_EXT */
#define MAX_ZDEV_CARDIDS 64
/* Deprecated: use MAX_ZDEV_DOMAINS_EXT */
#define MAX_ZDEV_DOMAINS 256
/* Deprecated: use MAX_ZDEV_ENTRIES_EXT */
#define MAX_ZDEV_ENTRIES (MAX_ZDEV_CARDIDS * MAX_ZDEV_DOMAINS)
/* Deprecated: use struct zcrypt_device_status_ext */
struct zcrypt_device_status {
unsigned int hwtype:8;
unsigned int qid:14;
unsigned int online:1;
unsigned int functions:6;
unsigned int reserved:3;
};
/* Deprecated: use struct zcrypt_device_matrix_ext */
struct zcrypt_device_matrix {
struct zcrypt_device_status device[MAX_ZDEV_ENTRIES];
};
/* Deprecated: use ZCRYPT_DEVICE_STATUS */
#define ZDEVICESTATUS _IOC(_IOC_READ | _IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x4f, 0)
/* Deprecated: use ZCRYPT_STATUS_MASK */
#define Z90STAT_STATUS_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x48, char[64])
/* Deprecated: use ZCRYPT_QDEPTH_MASK */
#define Z90STAT_QDEPTH_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x49, char[64])
/* Deprecated: use ZCRYPT_PERDEV_REQCNT */
#define Z90STAT_PERDEV_REQCNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4a, int[64])
/* Deprecated: use sysfs to query these values */
#define Z90STAT_REQUESTQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x44, int)
#define Z90STAT_PENDINGQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x45, int)
#define Z90STAT_TOTALOPEN_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x46, int)
#define Z90STAT_DOMAIN_INDEX _IOR(ZCRYPT_IOCTL_MAGIC, 0x47, int)
/*
* The ioctl number ranges 0x40 - 0x42 and 0x4b - 0x4e had been used in the
* past, don't assign new ioctls for these.
*/
#endif /* __ASM_S390_ZCRYPT_H */